Two dependencies are needed for the Serverless framework: node.js and AWS CLI. For installing AWS CLI, you may refer to the 'Deploying and Invoking Lambda with AWS CLI' recipe. You can install node using node packet as given at https://nodejs.org/en/download/package-manager.

You need to create a user for Serverless in AWS. It is a general practice to use the name serverless-admin and give administrator permission. It is not a very good practice to create users with administrator access, but currently that is the easiest way to work with Serverless. You should be careful about storing and using these credentials.